[alsa-devel] [PATCH] Make firmware vs driver major version mismatch an error.

[linux at audioscience.com]

From: Eliot Blennerhassett <eblennerhassett at audioscience.com>

I.e. incompatible firmware will fail driver load.

Signed-off-by: Eliot Blennerhassett <eblennerhassett at audioscience.com>
---
 pci/asihpi/hpidspcd.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/pci/asihpi/hpidspcd.c b/pci/asihpi/hpidspcd.c
index 8c0f251..f58d5a0 100644
--- a/pci/asihpi/hpidspcd.c
+++ b/pci/asihpi/hpidspcd.c
@@ -103,6 +103,13 @@ short HpiDspCode_Open(
 		goto error2;
 	}
 
+	if (header.version / 10000 != HPI_VER_DECIMAL / 10000) {
+		HPI_DEBUG_LOG(ERROR,
+			"Firmware Major Version mismatch  DSP image %d != Driver %d\n",
+			header.version, HPI_VER_DECIMAL);
+		goto error2;
+	}
+
 	if (header.version != HPI_VER_DECIMAL) {
 		HPI_DEBUG_LOG(WARNING,
 			"Version mismatch  DSP image %d != Driver %d\n",
-- 
1.7.0.rc0.8.ge3f67d